ML20083L614

Rev 4 to Procedure/Work Plan 1905.031, Airborne I-131 Determination Using RM-14.HP-210

ML20083L614
Person / Time
Site:	Arkansas Nuclear
Issue date:	05/05/1995
From:	Cotton S ENTERGY OPERATIONS, INC.
To:
References
1905.031, NUDOCS 9505180522
Download: ML20083L614 (6)

Text

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ENTERGY OPERATIONS INCORPORATED ARKANSAS NUC. LEAR ONE 1

.............................................................................. l Arkansas Nuclear One  !

Russellville, Arkansas Date: 950508 .

1 MEMORANDUM i i

i TO: 103 *Please return transmittal CC - NRC - WASHINGTON to Document Control, 3RD floor Admin Bldg

• FROM: DOCUMENT CONTROL Ref Key: 19428

SUBJECT:

PLANT MANUAL UPDATE: NEW REVISION TO PROCEDURE PROCEDURE / FORM NUMBER: OP-1905.031 REV. #4 TC # 0 PC # 0 PROCEDURE / FORM TITLE: AIRBORNE IODINE DETERMINATION  ;

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..................................... ........................................ i The following pages of the indicated rocedure(s) contains items which involve l parsonal privacy or proprietary mater al. PLEASE REMOVE THE INDICATED MATERIAL l PRIOR TO DISTRIBUTION TO PUBLIC DOCUMENT ROOMS, ETC.

PROCEDURE (S) PAGE (S) 1 l

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SIGNATURE: DATE:

UPDATED i i

PRINT NAME l

.............................................................................. 1 form title: form no. rev. l TRANSMITTAL (PROCEDURE / WORK PLANS / CHANGES /FORNS) 1013.002H I

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l 9505180522 950505 PDR ADOCK 05000313 j F PDR -

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l ENTERGY OPERATIONS INCORPORATED l ARKANSAS NUCLEAR ONE O TITLE: AIRBORNE LODINE-131 DETERMINATION USING PROC / WORK PLAN NO. REV.

61 of 77 AN RM-14/HP-210 1905.031 4 EXP.DATE SAFETY-REl.ATED l N/A SYE8 ONO CONTROLLED COPY #/0J ,,OE , 0, ,

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Self Check.

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.. cause Nobody's perfe VERIFIED BY DATE TIME I l

l APPROVAL AUTHORITY: APPROVAL DATE:

sM9r REQUIRED EFFECTIVE DATE:

,, FORM TITLE: FORM NO. REV.

LIST OF AFFECTED PAGES 1000.006A 43

. PROCMORK PUW NO. Fm N Pl.AN Tm2: PAGE: 1 of 4 1908.031 AIRBORNE LODINE - 131 DETERMINATION USING AN REV: 4 CHANGE:

RM-14/HP-210 O

1.0 PURPOSE Provide instructions on the use of the RM-14/HP-210 for determining Radioiodine-131 airborne concentrations.

2.0 SCOPE This procedure should be utilized for Emergency Team monitoring or for situations in routine operations where a gross Iodine Concentration is needed.

3.1 REFERENCES

USED IN PREPARATION OF THIS PROCEDURE None

3.2 REFERENCES

USED IN IMPLEMENTATION OF THIS PROCEDURE l 3.2.1 1601.402, " Operation of Portable Air Samplers" g 3.2.2 1601.400, " Response Check and Operation of Portable Survey i Meters" 3.2.3 1905.002, "Offsite Emergency Monitoring" 3.3 RELATED ANO PROCEDURES 3.3.1 1012.018, " Administration of Radiological Surveys" 3.3.2 1301.010, "Eberline Model RM-14 Calibration" i i 3.4 REGULATORY CORRESPONDENCE CONTAINING NRC COMMITMENTS WHICH ARE l IMPLEMENTED IN THIS PROCEDURE:

3.4.1 None 4.0 DEFINITIONS None 5.0 RESPONSIBILITIES i l

I 5.1 The Radiation Protection and Radwaste Manager is responsible for overall control and implementation of this procedure.

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. PROCJWORK PLAN NO. PROCEDURIUWORK PLAN Tm.E: PAGE: 2of4 1905.031 AIRBORNE LODINE -131 DETERMINATION USING AN REV: 4 CHANGE:

RM-14/HP-210 0 6.0 PROCEDURE i

l 6.1 IODINE-13'1 SAMPLE DETERMINATION 6.1.1 The iodine air sample shall be collected in accordance with j l 1601.402, " Operation of Portable Air Samplers". j CAUTION THE VOLUME OF THE SAMPLE TAKEN SHALL BE AT LEAST 100 LITERS  !

AND FOR EMERGENCY SITUATIONS ONLY SILVER ZEOLITE CARTRIDGES 1 SHALL BE USED. THE OFFSITE MONITORING SUPERVISOR OR DOSE ASSESSMENT SUPERVISOR MAY AUTHORIZE AIR SAMPLES OF LESS ,

THAN 100 LITERS IN ORDER TO MINIMIZE DOSE OR OTHER HAZARDS l THAT MAY BE PRESENT.

1 A. If the sample is taken during an emergency situation, j record the data on Form 1905.031A. j B. For non-emergency situations, record the air sample data on the Health Physics form applicable to the i survey situation. '

6.1.2 Turn the RM-14/HP-210 or HP-260 on and note the background count rate.

6.1.3 Hold tha frisker probe approximately one-quarter inch from the surface of the silver zeolite cartridge with the air inlet side of the cartridge facing the probe.

6.1.4 Note the gross counts on the RM-14 and calculate the net counts by subtracting the background count rate.

6.1.5 Determine the I-131 activity (in pCi) by using the following equation:

I-131 (pci) = net epm x 8.0E-'

CAUTION IF A CHARCOAL CARTRIDGE HAS BEEN USED AS THE SAMPLING MEDIA, THIS CALCULATION WILL RESULT IN AN OVERESTIMATION OF THE I-131 ACTIVITY.

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PROC./ WORK PLAN No.

PROCEDURE / WORK PLAN TITLE:

1905.031 PAGE: 3 of 4 AIRBORNE IODINE - 131 DETERMINATION USING N: AN 4

RM 14/HP-210 CHANGE:

6.1.6 Divide (in sample theec) activity (in pci) by the total volume of the to obtain the I-131 airborne concentration. {

I 6.1.7 Record all data and calculations on Form Sample Data emergency situation. Form" for sampling performed during an1905.031A, "I-131 6.1.8 I g

Place the silver zeolite cartridge in a plastic bag, seal Operations Facility for further analysis.and label the bag a A.

The label rate, should contain the time of sample, the flow taken. total volume and location where sample was (----

7.0 ATTACHMENTS AND FORMS 7.1 ATTACHMENTS

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7.1.1 Attachment 1, Deleted 7.2 FOPMS g

7.2.1 Form 1905.031A, "I-131 Sample Data Form" O

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10 SAMPLE DATA Field Team: Dates Air Sample ID # Sample Points Air Sampler # Cal. Due Date:

Time on Time Off Total Sample Times min.

Flow Rate: 1pm Volume = Total Sample Time x Flow Rate x 10' = cc Sample Collected By Badge #

COUNTING DATA RM-14 #: HP-210/260 # Cal Due Dates (Gross CPM) -

(Background CPM) = Net CPM l I

't I ACTIVITY DETERMINATION (Net CPM) x 8. 0 x 10 = pCi I* CONCENTRATION DETERMINATION 1 'l Conc. (pci/cc) = pCi + Volume =

8 pCi + cc =

pC1/cc l

Performed by: Badge #

Offsite Monitoring Technician Reviewed by: Badge #

Offsite Monitoring Supervisor

'O FORM TITLE: FORM NO. REV.

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l 131 EMERGENCY FIELD SAMPLE DATA 1906.031 A 4

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